This paper will discuss what is a child, and what I know of a child's development I my studies. By researching the sexual development, through the theories of Sigmund Freud, we can see how this theory, which I agree with, is a form to understand child development in today's world. By realizing the implications of this psychologist, we can see why this is a valid theory in the research of children in the field. 3 pgs. Bibliography lists 3 sources.